National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Baltimore, Inner Harbor (KDMH)

Lat: 39.28°NLon: 76.62°WElev: 20ft.

71°F

22°C

Humidity 66%
Wind Speed NA
Barometer 29.80 in (1009.2 mb)
Dewpoint 59°F (15°C)
Visibility NA
Last update 17 Jun 1:53 am EDT
Extended Forecast for

Garrison MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 84. Southwest wind 3 to 7 mph.

    High: 84 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. South wind 5 to 7 mph, with gusts as high as 18 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly between 4pm and 5pm. Partly sunny, with a high near 90. Southwest wind 13 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 66. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. Calm wind.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 84. Southwest wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 68. South wind 5 to 7 mph, with gusts as high as 18 mph.
Thursday
A chance of showers and thunderstorms, mainly between 4pm and 5pm. Partly sunny, with a high near 90. Southwest wind 13 to 17 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Thursday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 66. West wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Juneteenth
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 84.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Garrison MD
 39.39°N 76.74°W (Elev. 548 ft)
Last Update:
2:23 am EDT Jun 17, 2026
Forecast Valid:
2am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation